User Guide

48 | PXC 550

Specifications

PXC 550 Wireless

Ear coupling around ear

Frequency response 17 Hz - 23 kHz

Transducer principle dynamic, closed

Sound pressure level (SPL) 110 dB (passive: 1 kHz/ 1 V

rms

)

Impedance active mode: 490 Ω

passive mode: 46 Ω

THD (1 kHz, 100 dB SPL) < 0.5 %

Pick-up pattern (speech audio) 3-mic beamforming array

Noise cancellation NoiseGard™ hybrid technology with

4 pick-up microphones

Total noise attenuation up to 30 dB

Input power 3.7 VDC, 700 mAh: built-in rechargeable

Lithium-Polymer battery

5 VDC, 345 mA: USB charging

Operating time 20 hours (Bluetooth and NoiseGard on)

30 hours (only NoiseGard on, with or

without audio cable for flight mode)

Temperature range operation: 0 to 40°C/32 to 104°F

Sstorage: -20 to 60°C/-4 to 140°F

Relative humidity operation: 10 to 80%, non condensing

storage: 10 to 90%

Charging time approx. 3 hours

Weight (headphones) 227 g

Bluetooth

Version 4.2, class 1

Transmission frequency 2402 MHz to 2480 MHz

Modulation type

GFSK, π/4 DQPSK / 8DPSK

Profiles HSP, HFP, AVRCP, A2DP, DIP

Output power 10 mW (max)

Codec aptX®

NFC

Frequency 13.56 MHz

Modulation type ASK

Output power within 500 µV/m